I probably didn't found all cogs but here's more than enough to get Bigger Sticks and With Guns Blazing achievements.



Here's the recomended path of upgrades:

1. Raygun to Rayvolver
4,800 gold
5 blue cogs
2 silver cogs
1 gold cog

2. Machine Raygun to Assault Rifle
4,900 gold
4 blue cogs
4 silver cogs
1 gold cog

3. Laser Gun to Hyperbeam Gun
5,100 gold
4 blue cogs
3 silver cogs
1 gold cog

1. Space baton to Super Space Baton
1,100 gold
2 blue cogs
1 silver cogs

Super Space Baton to Ultra Space Baton
2,800 gold
2 blue cogs
3 silver cogs
1 gold cog

2. Tuning Fork to Antenna
1,300 gold
2 silver cogs

Antenna to Super Antenna
2,900 gold
3 blue cogs
2 silver cogs
1 gold cog

3. Space Shiv to Psyonic Dagger
1,200 gold
3 blue cogs
1 silver cog

Psyonic Dagger to Crystal Shard
3,000 gold
4 silver cogs
1 gold cog