hello metal slug game work in progress i updated the graphics and fixed bugs and put in more features

http://spamtheweb.com/ul/upload/160410 /64344_metalslugnew3.php

wasd - movement
y - shoot
u- jump
i- grenade
1-pistol
2- grenade(gonna remove later and doesnt work)
3-machine gun

what do u think and what should i improve on