Double Click the flag to play. WASD or the arrow keys to move. Click the wave button for the next wave. You can shoot by clicking or pressing the space bar. Once you finish a wave there will be a spinner, click the spinner to spin it. If your on a line the wheel couldn't decide so you have to spin again (sometimes). There is a shop too, when you click the shop button there will be characters you could equip or buy. Also abilities, when used and killed enemy the enemy won’t drop anything like XP or money.
I had help from a few friends @hi123jhon, @Zhongkaipei2011, and @weiyeg1 Also this is my probability project in school. (The spinner is the probability part.)