In Roblox TDS, the flying “angels” are Flying enemies , and they can only be hit by towers with flying detection such as Sniper, Ace Pilot, Hunter, Ranger, Pursuit, Engineer, and Executioner.

For the specific Fallen Angel enemy, the wiki says it is a Flying enemy that appears in Fallen mode, and a forum post notes you need towers like Sniper or Ace Pilot to defeat it.

Quick Scoop

  • Flying enemies are above the path, so normal ground-only towers usually cannot target them.
  • The Fallen Angel is one of those flying enemies in Fallen mode.
  • Good counters include Sniper and Ace Pilot, with other flying-capable towers also working.

Small note

If by “flying angels” you meant a different Roblox game or a different TDS enemy name, tell me the exact unit name and I’ll narrow it down.