Around 8 months ago I made a post about almost jumping over the gap in corrupted grove. Around a week after that I finally made it. I thought I posted it but now I realized I didn't. So here is it: (added a newer video)
I found this when I started speedruning. It's not done yet but with more practice it might skip almost to end. It should work by double jumping from the left platform then jumping on corruptor and getting hit by fireball and after that last jump to right platform
I would wanted to speedrun sometimes later but I don't very much about speedrunning so I just look for bugs and things like that.
Bug with which you can ski (drive on one side) on water without reseting. In video I have done it using invisible wall and water (which will reset you). In video I traveled small distance but you can go much further with better timing. Video:
How to do it: Use nitro to run into a wall and just before you hit the wall drift so you hit the wall when your car jumps. Hopefully you shoud be traveling on water (or some other surface).