With a Switch preorder in the bag, I have begun The Great Wii U Purge, aka everything on my Wii U must be beaten before I move on.
This is a very unrealistic expectation, as I have more than a few meaty games on there, but I feel pretty confident that I'll finish off my full retail and eShop games before I make the Switch. Games currently unbeaten on my Wii U:
Virtual Console:
Earthbound (Roughly 75% complete)
A Link to the Past (Not started)
Super Metroid (90% complete)
Advance Wars (2% complete)
Mega Man X (Garbage, remaining incomplete)
Kirby's Dream Land 3 (5% complete)
Golden Sun (5% complete)
Mega Man Battle Network 2 (55% complete)
Metroid Prime Trilogy (Prime- 90% Echoes-35%)
eShop Games:
The Swindle (Not started)
Elliot Quest (90% complete, could go straight for neutral ending)
UNEpic (65% complete, **** the Great Neuron)
Affordable Space Adventures (80% complete)
Runner 2 (35% complete)
Trine 2 (No idea, but not too worried about it)
Stealth Inc 2 (30% complete)
Citizens of Earth (Not started)
Swords and Soldiers II (Not started)
Runbow (Not started, likely remaining incomplete)
You might think that's bad, but I've got 27 other eShop games I've beaten on there, in addition to 10 digital retail games. Whoo!