My game, Castle Climbers

Hello everyone, I just finished making my first game in Gamemaker Studio! It is called Castle Climbers and it is a 2 player multiplayer platformer in which the players compete to stay alive the longest while trying to bring the other down and make them lose. It is far from perfect but I would be happy if you could check it out and give me feedback at the following sites:

Itch.io: https://zanywany.itch.io/castle-climbers
GameJolt: http://gamejolt.com/games/CastleClimbers/264189

Thanks in advance!