Super Darius
And though the enemy patterns aren’t actually any different than the original, I would imagine the zoomed-in view makes for a lot of re-learning for those who had spent a lot of time with Darius in the arcade.
Shoot ’em ups
Gradius
An even more novel idea than introducing real enemy patterns is distinctive Gradius power-up system.
Gradius
There are plenty of other changes that had to be made to accommodate for memory limitations of a cartridge in 1986 though.