Originally Posted by Drip

It happens when you kill a Geetle Bift (The names on the pests are killing me. xD I figure the developer or translator was hungry when he had to think up those names). I've seen them on different maps, including ?-1, but no idea whether it's a random pest replacement or a fixed mob, I didn't keep track.

Geetles are fixed mobs, always in the same pest group. They are also included in the total tickets count for each map that was posted earlier.

@whoever mentioned the special SG for lots of tickets in a prior event, those were spawning after x-8 sometimes and not part of the first phase already.