This game feels amazing to play. Once you get past the first few levels and start grasping the controls, you start to enter a trance-like state that is very rewarding. The immediate death resets, fast pace, and carefully progressive challenge create an addictive loop of rewarding game play. It feels a lot like Hotline Miami, where you can do the same thing 100 times, slowly inching towards your goal each time, until you finally achieve it and get a huge rush of euphoria.

The only problem this game has is the abrupt difficulty jump in the penultimate world, Mercury. it feels as thought 2 or 3 worlds were missing before it to build up player skill and game feel, and you're left floundering. For a game that is completely lucid during the previous 7 worlds, it can really leave a sour taste in a player's mouth at the end. combine that with the fact every level must be beaten in order to finish the game, and i'd imagine most people give up/switch to easy mode to complete the campaign.

Even with such a strong difficulty spike, this game is a blast to play and will consume you for a couple hours at the very least. Highly recommended.