I finally figured out the last trick, by making a list of every single combination of moves and trying them out one by one. Kinda wish I'd done them in a different order, because the one I was missing was 236th on my list (of 256).
In any case, for those interested, here's the full list of tricks in Gel-Arshie's Pro Fruitboarder. It doesn't matter for awesomeness (other than to help you get the high score) but it's kinda awesome anyway. Right? =D
- → → — Nosegrab (x2)
- ← ← — Tailgrab (x2)
- ↑ ↑ — Creepy air (x3)
- ↑ ↓ — Kickflip (x5)
- → ↑ → — Ode to a Grecian urn (x6)
- ← ↑ ↓ — Jelly on the side (x6)
- ← ↓ → ↑ — 180 reckless flail to handstand (x10)
- ← ← ↓ ↓ — Inapproprate tailgrab (x10)
- ↑ ← ← ↑ — Backhand reverse boondoggle (x10)
- ↑ ↓ ↑ ↓ — Down with acoustic rock (x15)
- → ↓ ↑ ← — Slimy Egyptian (x15)
- ← ← ← → — I don't know how it works! (x15)
- ← → ↓ ↑ — Misunderstood male cheerleader (x15)
- ← ↓ ↓ ↓ jump — Reverse stainless steel French press (x20)
- → ← ↑ ↓ jump — 360 flapjack to junk in the trunk (x25)