Ok... where i start?
The game is wrong so many levels, im gonna make a list about the mistakes:
1: The original punch out have a diferent block system, you don´t block the 100% of the damage and you need to press again when you block a hit, in this game you can hold the block option and be practically inmortal (except for the special attack)
2: The music is annoying..
3: The shaking screen when you hit make hard to play the game, seriously, this game need a option for turn off the music and this shitty effect
4: The game don´t have "tired system" so the game lose complexity, and only is block, punch 2 time, and dodge the special attack and GG
5: Less effect what are present in the original punch out (Really a flash game in 2016 have less detail than a game made in 1984?)
6: The time continue without care about the player or the enemy get KO, that make the game more difficult, but at the same time, if you get KO and you don´t get up before the 3:00, you gonna be inmortal in the next round, winning the game in a easy way