There is a glitch where sometimes the enemy stops at the beginning, if this happens, click the green flag Press the flag 3 times so that it works properly I recommend playing in full screen mode Wait 1 second to buy items after opening the shop
Warframe's Scratch Tower Defense Tutorial Game Over Music by Me All sounds from scratch: Bullet and Explosion sounds are modified versions of the "Crunch" Sound, laser power-up and fire sounds are modified versions of the "A Electric Bass" Sound