head to head
Fallout: New Vegas asks more than Pokemon Colosseum, and the gap is execution.

Optimization · Pure Optimization
A faction-driven RPG-shooter where build and route planning shape every ending.

Optimization · Pure Optimization
A darker GameCube RPG where you snag corrupted Shadow Pokemon from enemy trainers in double battles.
Fallout: New Vegas leans Optimization (Pure Optimization); Pokemon Colosseum leans Optimization (Pure Optimization).
Fallout: New Vegas leans clearly harder on execution.
Fallout: New Vegas
Shooter inputs with VATS assist
Pokemon Colosseum
Turn-based double battles, menus only
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Scripted factions and enemies
Pokemon Colosseum
All opponents scripted; no PvP focus
Pokemon Colosseum leans a little harder on variance, though the gap is small.
Fallout: New Vegas
Some loot and crit RNG
Pokemon Colosseum
Shadow Pokemon snag rolls and crits
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout: New Vegas
Faction routing, perks, builds heavily rewarded
Pokemon Colosseum
Double-battle synergy and purification planning dominate
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.