The Worst of the Best.
Yamcha vs Aquaman. Two heros ridiculed for being weak links in an otherwise competent team of heros. Battlefield Namek. No prep. No senzus.
Round 1: Yamcha vs. Animated Aquaman(super friends/justice league. Which ever.) No namekian wildlife.
Round 1.5: yes namekian wildlife.
Round 2: Yamcha vs comic Aquaman. No wildlife.
Round 2.5: yes wildlife.