Played through the mushroom bonus levels.

Finished the remaining levels of world 6 and I played through world 7 & 8 as well! Meaning I finished the main game, but after the end credits I unlocked a galaxy world which I completly played through as well. I thought this was the secret world BUT NO, I unlocked another world wich I will finish next time haha.

I replayed some old levels while talking to @MitchellGSPR.

Finished world 5, and played up until the 5th level of world 6.

I started world 5, so far I played up until level 4.

Finished the remaining levels from world 3, and completed world 4.

Finished World 2, and played up until the 6th level of world 3.

Started Super Mario 3D World! I never had a Wii U so I am excited to finally play it. So far I beat world 1 and played up until the 4th level of world 2.