- "Leave these jellyfish Noise alone for long, and it's math time as they divide and multiply!"
- — Noise Report
- 'Drifter': The Jelly Madchester extends its smaller tentacles passively as it drifts around, causing damage and possibly immobilization upon contact with the player.
- Jelly Mitosis: The Jelly Madchester will attempt to clone itself every ten or so seconds, or when it receives a Lightning Pass that has damaged the player. Doing so will create either another Jelly Madchester or the "mutant" Jelly Swechno.
- Lightning Pass: If there are any other jelly Noise on the battlefield, Jelly Madchester will send out a lightning bolt to another Jelly noise, which will bounce between other Jelly noise. These will damage the player if they get in the way and cause Jelly Madchester that collect the damaging pass to use Jelly Mitosis.
As long as they are not allowed to multiply too much, Jelly Madchester are not too much of a threat. Since Jelly Swechno cannot clone themselves, attacking Jelly Madchester first is best if the player wishes to stop them reproducing (due to their resistance to negative (long-ranged) psychs, it may be better to favor positive (close-ranged) psychs when attacking them). However, a player may want to purposely avoid attacking these Noise in order to allow them to create more enemies (possibly more Jelly Swechno in particular, as they give more EXP for their erasure) to defeat, and thus provide the player with more EXP. On the other hand, this might be a risky tactic, as the more jelly Noise that there are, the higher the chance of the player being struck by one of the lightning bolts that they pass among themselves.