the game is very polished with pretty good art and music, the platforming section of the game was pretty tight and the controls felt the same way, the enemy design was really nice and they all def trying to mess with you, getting extra lives when you collect enough gems was a good addition and def makes the game a bit more fair since it's pretty hard (and i can tell you got some inspirations from super mario for that) ,although i felt that i was kinda stunned when i get hit by the enemies which isn't really good for a tight platforming game like this one, also the enemy placement felt some times unfair since some enemies were placed in very small platforms where it's really hard to get down there and kill them before they hit you, but other than that, it's a pretty solid game and had fun playing it
if you have some free time maybe check out my game and leave some feedback there, i'd like to hear some ;) ;)