This is level 4 of the I-Tunnel.
This level has multiple sideways conveyor tiles. The last two jumps are near impossible with all characters, and you need to literally poke the jump button for each. This is why I suggest using the Runner or the Student because they can do short jumps. The Runner can easily manage the rest of the snake due to her great maneuverability, and some of the twists are by-passable by jumping left instead of spiraling right., The Student is the same, except slower, and you can turn gravity upside-down when necessary.
You've done well to get this far! However, the next level is ridiculously hard and is arguably one of the hardest levels in the game.