One important distinction between the three that left me wanting with 2 was that it's the one that does the least with environmental hazards. The stage dynamism amounts to the occasional shift in scrolling direction like the memorable diagonally downward slope right in the opening stage, but the entire game is just mostly static fight arenas as far as what might threaten you within those spaces and what factors you may need to keep in mind. The first game has pits, conveyor belts with hydraulic presses, and most importantly the elevator battle setpiece--something they'd try to recreate every time and never manage to make as exciting as here. III is again more up to my preferences in bringing back those "basics" in what the first game laid out, but also doing new things of its own like rolling barrels, the wonderful railroad track stage where you're ducking into alcoves to hide from the barreling mechanical ram, and sci-fi nonsense laser traps toward the end. I feel like 2 is excellent for those who relish in multiple kinds of distinct movesets to try and master across the roster, but as someone who always just plays Blaze, it didn't cohere as well in comparison.