2. Aircrash: the second river, don't jet ski, but jump on the boxes to
the platform
3. Unbearable: when the cub bucks you off, go back until you see him
again.
4. Hangin' out: when you drop down a hole into some eel-less water go
into the foreground and drop down a hole. use R1 to make crash pull up
his legs.
5. Diggin' it : near the end there is a spitter plant on a circular
platform. Belly flop onto it.
These are for the colored gems.
Turtle Woods: You have to get no boxes (Blue Gem)
Snow Go: Get the warp for Snow Go and at the end of it is the Red Gem
The Eel Deal: Go past the Nitro Boxes at the Dead End and go through the wall. (Green Gem)
Plant Food: Get no boxes and beat the timer