space to shoot 1-4 to swap guns 5 to use decimator 6 for molotov everything is unlocked as you p(r)ogress wave 5 ar unlocked wave 20 shotgun unlocked (and molotov) wave 30 lmg wave 50 decimator unlocked wave 100... he appears please note he has about 2k health and 3 attacks (i think thats the order)
thanks to coffaine for the weapon sprites in the bottom, truly amazing