I really love Nunar’s levels, you may know it now with the name tunar98 (he changed his name multiple times) or by the level Cyber Paradise, but i think he was a very creative creator with cool ideas.
I recommend you to play cyber paradise (if you still didn’t play it) the last bc for me that level encapsulates the best of Nunar.

If you like memory play: Blackout (86108), Military (709020), Cyber Paradise (396874) and Biohazard (286279).

If you like classic levels play: Time Road (119199), Dimensions (1012334), Illumination (1476011) and Cyber Paradise (396874).

Hope you enjoy as much as i do ;)