A tower defence inspired by BTD 6 only one tower achievement

Instructions:

• 1, 2, 3 to choose towers and upgrade tower
• F to remove tower (this gives back money except for 3rd tower)
• Enter to start wave
• R to retry when dead

The 3rd tower freezes the enemies around it when removed

Made within the last 5 days of 1-bit Jam 4

Title font: VCR OSD Mono