Nice game !
To much info at the start, but makes sense if you start terribly strong and go weaker with every level. Personally it was hard to know if i was selecting or not an ability at the start, in my third run i saw the select/selected text, but it should be made with some visual, like changing the frame color of the ability. Also its confusing when you enter that ability selector, and half the abilities are already selected. The fact that you start with everything and then go weaker i feel it isnt explained as good and clear as it should be, i mean its the unique mechanic of the game, and its on the third page of the How to play guide. There should be a big text before the ability selection menu so you guarantee every player understands the game, you should emphaszize that info because it is so different from what usually happens in other games, and players tend to avoid reading thinking is just another game and suddenly there is a lot of abilities and doesnt know what has to do. Overall its an awesome game, with nice visuals and audio, it can be polished a little bit more (the level up menu for example its strange when opening, feels like it opens two times or something), but its nice as it is, great job !
Also, you can try my game if you want, it just takes 5 minutes ;)