The video was 4 months ago, but im still gonna say it Lost Citys 1st gem, you can go to the top of the tower things at the start, its low enough so you wont crash
honestly the gem in cube is harder than the gems in ajr, i almost never fail the gems in ajr, but that one gem in cube contributed to at least a quarter of my fails
Mi Top Top 15: Ghost Samurai 4th gem Top 14: Mechanical PAIN 7th gem Top 13: Midnight Carnival 10th gem Top 12: Psychedelic Music 7th gem Top 11: 8bits 7th gem Top 10: Kepler's Dream 10th gem Top 9: American Football 8th gem Top 8: Deep Space 18th gem Top 7: Cube 5th gem Top 6: Microchip 1st gem Top 5: Clown Park 9th gem Top 4: VR Fairyland 2nd gem Top 3: 1up 9th gem Top 2: Cube 10th gem Top 1: World Cup 10th gem
I find Clown Park's 9th gem and Dynamic Cube's whatever gem similar difficulties because it's like: diagonal, 2x1, diagonal to the target -except in Dynamic Cube you have to jump from one end to the other end