)
Honestly, The only game I've played in the last 6 years that fits the bill would be Undertale, But every man and his dog has played that by now and it's not especially hard.
Perhaps bloodstained or valfaris? Look'em up. They also seem closer to 16 bit style games though. Way to many Sprites and buttons, ha.
An 8 bit platforms should only require a d-pad and an A&B button damnit.