Firstly really enjoyed the art style very retro and i loved that, also the models were both simplistic yet perfectly designed for this game. Really impressed with them and the whole continuity of design very very cool.
I did also really like the barrel roll and backflip animations even though they serve no purpose although perhaps disappointing they did not serve a purpose.
The music was excellent as were the majority of the sound effects, however some of them were a little jarring and repetitive (i think its the enemy's taking damage noise) which i didn't overly enjoy maybe a different effect would have been more suitable.
I found it kind of strange that the controls were told to you at the end of the game and maybe felt there should have been a main menu with controls on instead of just being thrown into the game. The win screen also felt a little weird and sudden. I didn't really realize i had reached the end of the level until the win screen popped up.
Overall i really loved this game and it has got me itching to go boot up some of my old classics, really good job all round