This game is awesome, its art style is beautiful, it controls good, the music is awesome, each level feels different, you can tell this game was made with a lot of love and care.
HOWEVER the hundo for this game is completely miserable, you need to have max hp (this means you have to do every boss without getting hit) and you have to collect 20 red coins and 5 flowers in each level. If you mess one of these up you have to REPLAY THE LEVEL WHILE COLLECTING ALL OF THEM AGAIN. Like if you could just run through the level and get the ones you missed it would be fine but noooo. It is so fucking annoying to have to guess which way is bonus and which is the intended route cuz most of the time the normal way locks you out of going backwards in the level, at a certain point I just gave up and started using rewind. Its not even like hundo is just for cool points or whatever they literally lock levels behind hundoing worlds. If I were to play this game without going for hundo i'm confident it would be much much better. very disappointing tbh cuz I always hear people say this is one of the greatest 2d platformers ever made, and while it may be true if you don't go for hundo, you can't really ignore how horrible going for it is.