Executive Meddling: He wanted only pre-existing characters in Paper Mario: Sticker Star, resulting in a bare-bones plotnote while, of course, the Super/Mario series never had much plot, all of the Paper Mario games (or even Mario RPGs, for that matter) had very well written ones and a lack of partnersnote and otherwise original characters, except for Kersti, a few Toads, and three of the bosses(though only one had a personality), which the game was at one point set to return to. Fanswere not amused.
He's actually been simplifying games since Zelda: Four Swords Adventure, which was supposed to be a prequel to A Link To The Past until Miyamoto said it distracted from gameplay. His staff call it "uphending the tea table"
Link's Crossbow Training was planned to be a full-fledged game that would be to Twilight Princess what Majora's Mask is to Ocarina of Time... But guess what happened?