A Suggestion can you please add zombie mode or campaign and practice mode(like you can choose a map and you run around and there are npc's trying to kill you)
Some stuff you can add to the game: 1:need to get crystals faster and easier 2:add an assist system 3:need to give some crystals to the losing team 4:More weapons 5:Abilities like invisibility,speed boost,forcefields or shields etc. 6:Make weapons a bit cheaper or a discount or something click the + button so they can see!
perfect game i reached wave 20 and then i need to go to school then when i came back and play this my level all of my stats and the wave all of it came back to 1... so needs AUTO SAVE!!
hahaahh spoiler alert: please dont hate me ;-; this is for people that is stuck in room 20 i used a hint and then i saw refresh then i clicked r :3 then walah! i fixed it!