White Gems[edit]
To get a white gem in a level, you have to get to the end without losing lives (at least, not after the first C box) and breaking all the boxes. You have to collect all the white gems in the game, including those of the two secret levels, if you want to complete the game 100% and see an alternative (and better) ending.
Colored Gems[edit]
If you destroy all crates on certain levels, you will unlock a colored gem. There are some levels were you can't destroy all crates without use of a colored gem. (i.e. You cannot destroy all crates on the Jungle Rollers level without the green gem.)
- Red Gem - Perfect on Slippery Climb
- Yellow Gem - Perfect on The Lab
- Blue Gem - Perfect on Toxic Waste
- Green Gem - Perfect on The Lost City
- Orange Gem - Perfect on Generator Room
- Purple Gem - Perfect on Lights Out
Secret Levels[edit]
There are two hidden levels in the game, that you can reach only by getting a key:
- Whole Hog - Get key from Cortex Bonus Round in Sunset Vista. It is a harder version of Hog Wild, with more ortacles and loger gaps. You have to jump when bouncing on the drums, to get enough height.
- Fumbling In The Dark - Get key from Cortex Bonus Round in Jaws of Darkness. A more difficult version of Lights Out. There are some hidden boxes, immediately before the starting point.
The only purpose in these levels is to complete them breaking all the boxes and without dying, in order to get a white gem.
Passwords[edit]
Enter these codes at the password screen.
| Code | Function |
|---|---|
  
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2% complete |
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11% complete |
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Level 7; Rolling Stones; No Gems and 13% Complete |
|
|
18% complete |
|
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22% complete |
|
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Level 13; Temple Ruins; No Gems and 27% Complete |
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Level 17; Koala Kong; No Gems, and 36% Complete |
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|
Access all levels. |
|
|
Begin with half of the levels completed. |
|
|
Skip to third island. |