I think the game will be better without this terrible glide and bouncing. There are some places where jumping is nearly impossible because game physics. Shop button is nearly invisible in the beginning of the game. I have noticed button only in 3 level when was killed for many times. Maybe you should place icon near it. Also shop items may cost more. I have bought all armour and most powerful weapon in 4 level. You can make ammo and grenades limited, so player need to buy them in shop and use all weapons in battle. Add more character animation and your game will look better. When characters are not doing anything they always stay in one pose.
PS. Sorry for my terrible English.
 ".: Plazma Burst :: 1.6 :."){kind=icon}