Super Onion Boy 2 (PC) | CheatingDome.com |
| Achievement | How to unlock |
|---|---|
| Blue Jellyfish | Defeat the First Boss! |
| Blue Snake | Defeat the Blue Snake! |
| Crab Boss | Defeat the Third Boss! |
| Flying Heart | Find a Flying Heart! |
| Flying Robot | Defeat the Flying Robot! |
| Ice Crab | Defeat the Ice Crab! |
| Mage Transformation! | Unknown. |
| Magic Bubble! | Unknown. |
| Magic Spring | Go to Heaven with the Magic Spring! |
| Ninja Transformation! | Unknown. |
| Power of Invincibility! | Unknown. |
| Powerful Bubble | Unknown. |
| Psychic Bat | Defeat the Second Boss! |
| Psychic Pirate | Defeat the Final Boss! |
| Snow Shark | Defeat the Fourth Boss! |
| Stars | Get all the Stars! |