Alien Ufo

The Alien UFO is an enemy in Swamp Attack.

It appears in stage 4 and beyond as a common enemy.

Abilities
These enemies will rapidly burst-fire fire laser bolts at the player's house. The bolts generally do very little damage each, but the fire rate makes up for it. Thus, they are more dangerous than the mosquito due to their significantly higher health. This problem can compound if they spawn with shields.

Practical counters include Battery, which slows them down, allowing for better shots along with chip damage, and Fridge, which disables them entirely. Fire effects are not quite effective. Cousin Roy, although incapable of instantly defeating one, will deliver significant damage to a singular unit, so it's assistance can be of some extra gravy.

The Stop Sign is not useful against them, as all ranged enemies will not target stop signs.