All secret rooms can be accessed with any character, but Kunio and Misako make it easier because they can infinite wall jump. So pick either of them.
(I recommend Kunio because his special aerial is better vertically which skips the wall jump part)


Special aerial for Kunio is called Jump Hurricane kick (Don't hold)
Special aerial for Misako is called Lightning Rider


You also need to have unlocked Sanwakai Tower which is why I recommend beating the game first.
Your map should sorta look like this.



And these are the things you're looking for in secret rooms.
Collect them by pressing your attack keybind.

This one is pretty simple.
You start at Mall Entrance and go inside the mall. Once at the Mall Lobby go to the right and enter the closest door. This will take you to Mall Second Floor. Walk all the way right and enter the Carousel.

(Route highlighted from nearest bust stop)


Once you're there, a golden horse will appear in the carousel.
Enter it by holding whatever your attack keybind is.

This one is simple too.
You start at Toy District near the bus stop, walk up to enter the Basement and walk right to enter the Pawn Shop.

(Route highlighted from nearest bust stop)


Once you're at the Pawn Shop, get on top of the shelf and enter the vent

This one was tricky but someone in the comments made it easy.
You'll start at Downtown shopping and go left. Go straight left again at West Tunnel. Once at Back Alley walk all the way down.

(Route highlighted from nearest bust stop)

Yes, this is where the entrance to the secret room is, but that's not where you want to be.
You want to enter the Coffee Shop to your right and go right again to Hipster Street.
Once at Hipster Street, climb the vines and go left to this place.


Then hold your attack button and you'll get sent to the roof at Back Alley.

Now walk on the rope to get to the other side and enter the door that says exit.





There's also another secret in West Tunnel. Enter the wall that has a star and you'll enter a shop that sells two powerful but expensive items.

This one has to be the hardest to enter out of all of the secret rooms due to the waterfall blocking your view.
Start at Campground and walk down to enter the Waterfall area.

(Route highlighted from nearest bust stop)


At this point just use Kunio since it makes everything easier.
As kunio, Enter the waterfall and go as far right and down possible. Then just spam his special aerial to the left. Make sure to have plenty of stamina. Once you bump on the wall to the left, you should stop and enter the room.
This is what you should see when you're standing at the entrance of the secret room.



As any other character, you also need to go as far right and down possible inside the waterfall.
Then you want to go all the way to the left. You'll bump into something. Get on top of that something. Then jump without running to the right. You'll land on something else. Then jump without running to the left and there, you're in the secret room entrance. Try not to move as much when you've landed otherwise you'll fall of.

Just take the boat at the Waterfall area since it takes you where the secret room entrance is. Plus, you get an achievement out of it.
(You can only take the boat route if you've defeated the boss at Flatirons)
(Bus route long to explain, not gonna highlight anything)



Person you talk to in Waterfall area to get to Ocean Heights


Once at Sand Castle, you get on top of the giant sand castle and break whatever the thing blocking the entrance is to enter the secret room.

If you haven't done the Sabuko quest in Technos then I recommend you since I'm pretty sure you need to complete it in order to access the secret room.
There's two ways to get there, the short route and long route.

Short route starts at Technos Lobby going through the vent on top of the Double Dragon screen. Keep going right to pass the Heating Vent, Cooling Vent and Air Vent, then go down to the Robotics Warehouse and go right to the VR Room.
(Route highlighted in Red)

Long Route starts at Technos Lobby, go right to Technos Campus, enter the door on the right side of the bar to Cubicles, go all the way right to Mech Factory, go all the way right to the Atrium. Climb the vines all the way to the top and go right to the Robotics Warehouse, right again to the VR Room.
(Route highlighted in Yellow)

(Routes Highlighted from nearest bus stop)


Once you're at the VR Room, punch this outhouse to the right of the Cantina and a key should pop out. Pick it up.
(key doesn't appear for me cuz I already picked it up)



Then enter this outhouse on the left side of the Cantina.


(A Cantina in a nuthsell is basically the Meixcan version of a bar, common in Spanish speaking countries like Mexico.)

If you know how to get to the secret room at downtown then this one should be just as simple.
You start at Sanwakai Tower, enter the building to Tower Lobby, and go left to Mao Sushi.

(Route highlighted from nearest bus stop)


In order to get up there, get on top of the conveyor belt that's above and wall jump on the right side while holding up. (Hold jump while wall jumping to go higher). Once you're on the top, go all the way left and get on top of the shelf with pots.
While on the shelf, walk holding left (This prevents you from falling off the shelf) and enter the room.

You can also just spam Kunio's special aerial to the left until you get on top of the shelf.

I know this location is unlocked before Sanwakai Tower but I put it last because the actual location is not visible on the bus stop map.
Explaining this is long, you start at Checkpoint screening, go left to the Cafeteria, left to the School Gym, left and bottom to School First Floor A. Go right to Fighting 101, right to First Floor B, up to Cell Block, get past the metal detectors to propaganda class and finally go left to Solitary.

(Route highlighted from circled area)

Once you're at Solitary, you'll find this yellow door that keeps opening and closing.
There are two ways to enter it.
You can wait for it to stop slamming and quickly enter the room
or
You can use your invincibility frames to enter the room. In other words, let yourself get hit by the door and roll get up towards the door to quickly enter it.

Congratulations! You've collected every thingy that you need to unlock her. You'll even get a message from her on your phone.



As you can clearly see she is located at Crosstown, so take the bus to the Mall Entrance and head right. Once at Town Square, enter the door all the way on the bottom right. This will take you to the Mysterious Hallway where you'll have to walk all the way right to find a bright red door.



If you've been here before you'll know that this room was locked, but not anymore.




Once you've entered the room, you'll be greeted by this girl running past you in the Memory Field.
Thanks to someone in the comments, I remembered that the girl is Misako as a kid. You can't hurt her with any attacks however.
Do not question why my first instinct was to attack a child.



Anyway, follow the girl and you'll find Kebako herself who you can recruit for $25.
(in game currency)

Kebako obviously has to be an unique recruit since it takes so damn long to get her. Right?
Well she is unique, unique enough to explain how she works.
Also, the game got updated which gave Kebako some buffs and fixed a bug that didn't let Kebako get buffed by the Coach's Hat accessory. She's still not affected by the Virtual Pet accessory though...

Cooldown 50 seconds
Cooldown gets reduced by half with Heart Earrings accessory.
(Pretty sure she's the recruit with the longest cooldown)

Attacks
Kebako has three different attacks, each being completely random.
I will put them in order from weakest to strongest overall damage.

Pac-cat attack
This attack is the weakest.
It shoots out one pacman with cat ears that deals 38 damage (45 dmg with Coach's Hat).
Attack has long range and knocks over opponents.
It can also block break. It's useful for PvP, if you're into that...



Stun Flask attack
This attack is ok.
It shoots out one flask, bottle, whatever, that deals 50 damage and guaranteed stun.
Coach's Hat doesn't buff this attack for some reason.
Attack has short range and splash damage but projectile is slow.
The AoE of this attack is huge.



Minigun attack
This attack is the strongest.
It shoots out 6 bullets, each bullet dealing 22 damage (27 dmg With Coach's Hat).
Attack has medium range but does not knock over opponents.


I couldn't find any special animations that she has or anything so that's about it.

That's everything you need to know in order to unlock Kebako.
One thing I didn't mention is that you'll also unlock other recruits while collecting the things in the secret rooms. Not sure which ones they are but I'm not gonna start a new file to find out (At least not yet). Oh and I'm probably the first person to unlock Kebako as a recruit, if I'm not then at least I'm one of the first few to do so. If you want to correct me in anything I got wrong, like the name of Kebako's attacks (which I probably did) then feel free to do so. This is my first time ever making a guide on Steam so there's bound to be be some mistakes.

I also wanna thank WayForward for being able to make this cool game, and Arc System Works since they also worked on it, and Megan McDuffee for most of the soundtrack, and Stephanie Komure making a cameo as Patricia Wagon... Pretty much everyone who was involved in the creation of River City Girls 2. Mostly thanking WayForward tho since I found this game through their other games. I loved the first game and I've been waiting for the sequel to release ever since it was announced.

That's about it.
Take this image that everyone has probably seen for the hundredth time. This image haunts me and if you dare make it your profile picture, I will hit your shins with a Razor A2 kick scooter color purple.
Or as I called them as a kid, Patineta.