Starting info found in this gamefaqs guide: https://gamefaqs.gamespot.com/nes/587290-fun-house/faqs/51003

Short notes to refer to for any%:

1-6 warp to 4-5 6-5 warp to 8-5 9-5 warp to 12-1 Beat 12-6

1-3 Touch and Go top left, top right, bottom right

1-6 Horse Shoe Hit wall to the left of the gun at top of stage, get warp

4-5 Velodrome Follow targets around in counter-clockwise order

4-6 Connect the Dots Follow path laid out by the targets to the 1, return to start for the 2

5-1 Pachinko (easy)

5-2 Vortex Trainer middle left, middle, top right, bottom right, bottom middle, middle left, bottom left, +2 generic targets

5-3 Ice Fractal all the way to the right, then hit hallways back to the left, top followed by bottom.

5-4 Corporate Ladders Follow flow diagonally, then go down along right side, along bottom, diagonal.

5-5 Up and Down right, left, right, left

5-6 Counter Clockwise (easy)

6-1 Pinball (easy) 6-2 Binary System left is odd, right is even

6-3 Every Other Time 1st target on left, hit cardinal directions clockwise, diagonal directions clockwise

6-4 Cross Street up, down, right, left, up, down, right, left, down

6-5 Chambers go right, 2nd chamber hit the warp in the top right of the middle chamber

8-5 Tip Toe forward to 1, then turn around and follow center of path

8-6 Escargot spiral path all the way to middle, then all the way back out

9-1 Fort Glop bottom right,go up left, go up right, go left, go down left, go down right, go to top row.

9-2 Chess right then left across entire bottom, all the way to top left then follow it right and left.

9-3 Return to Sender up past the ^^ squares, hit 2 generic targets, follow ice and vv squares down to 1 target.

9-4 The path of least resistance go right, follow purple path to end, then go in every side path all the way back. 3 is on main path, 4 right behind you on side path.

9-5 Fun House Donut go up, hit corner by 2 for WARP

12-1 The Inside Track top, left, top, bottom, right, left, top right, bottom, right

12-2 JDs Workout go up avoiding guns, go right, middle top, down, right, up along the wall, down along the wall, at bottom go left

12-3 Things that go bump right then up, go to top of level, come back down and break the bumpers on right room then left

12-4 Alcatraz follow level arrows around, targets past enemies, at bottom take left path and go left to the 1

12-5 Ultra Gauntlet even left, odd right, many clocks

12-6 Ultimate Commuter odd left, even right, many skates, level flows clockwise