A confusing mechanic: potions fully replenish your health when it goes to zero, acting as an extra life bar. Also, what happens when you hit zero hp with no potions?
A fairly satisfying one-button game. Decently paced BGM, nice standard jumping sound but the landing sound is a bit jarring. However, the 'jumps' do not feel like jumps: maybe they don't take you high enough? Maybe the scale of the screen, or the jumps, or the buildings, or the cat, the scale of /something/ feels off.
It's nice that you added both keyboard and mouse control (controls?), but please make sure to add clear instructions next time: the 'z' key is not mentioned in both the in-game and out-of-game instructions. 3/5, needs some polishing.
The gravity-switching is a good use of an interesting platformer concept in puzzles. However, the rest of the game needs to be more responsive: the controls are stiff, and vanishing platforms take too long to disappear. The game does not save your progress, which is definitely not good. I also dislike the demanding jumps, because the player character is not compact. The title screen is extremely annoying to listen to.
...I am also worried about the state of the intellectual property involved here.
All in all, a very unpolished (and possibly illegal) game. 1/5.
Heh. On the first screen of 2-2, when you pull the first lever, you can avoid the moving spikes on the bottom path by jumping over the wall to the other side. Fight tha powa!
There's always a catch ;)