Super Smash Bros. was shaped by the 3DS
Super Smash Bros. 3DS imposed a number of limitations on the Wii U version.
The latest Super Smash Bros. Did You Know Gaming episode has plenty of intel to share, but the bit I didn't know about was the effect the 3DS verison had on the mothership Wii U release.
Turns out, the Ice Climbers were cut because of the 3DS - but on the other hand, it's also thanks to the portable that Sheik became a full character rather than an alternate Zelda.
That wasn't the only effect, but you'd probably rather watch the video, narrated by the Announcer himself, than read my summary.