Single player, by 
ok the one thing i liked about this is the placement of ammo gems etc.
Bad things
The level is very frustrating , there are many warps what take you back to the start of the level , whats even worse is all the enemies have respawn on them so you have to through them all again and that isn’t fun at all , have respawn on enemies is ok at times but when you have to go down a hole and get back the enimies are respawed already , also it did not look like a hot desert at all dispite the tileset , you need to use a better background and the eyecandy was awful , you put mountain top on a piece of ground that isn’t good , use the tileset properly , it normally makes the level better .
conclusion:
its just to frustating as enimies respawn too fast and you can go all the way back to the start of the level.
sorry , but this is bad , but keep trying and your get better trust me.
