Added five secret Frutiger Aero levels.
Improved Mowsy’s movement. She can now release sonar waves more frequently, making it faster and easier to explore the dark caves.
Added a new music track for the Frutiger Aero levels.
Added Guatito as a second playable character. More updates and gameplay mechanics are planned for him, so this feature is still being expanded.
Two-player mode can be played locally or through Steam Remote Play Together. For the best experience, a stable connection with low latency is recommended.
Added a brand-new boss battle.
Fixed several incorrect or misplaced tiles throughout the game’s maps.
Added another secret level that I strongly recommend you do not look for.
Added new Frutiger Aero NPCs and dialogue.
Added mysterious bubbles that provide clues about where the hidden Frutiger Aero levels may be located.
Added a new action-packed dolphin level inspired by the tapir level.
Added six new Steam achievements.
Various minor bugs and gameplay issues have also been fixed.
Version 3.0.0.0 — Frutiger Aero Update
Source: Steam Community (opens in a new tab)