Unsolved single-goal challenges

This is a list of single goal challenges that are incredibly difficult/impossible with current knowledge. None of these have been completed.

• Clipping from the bottom area of Wiggler's cave to the top area, or vice versa
• Grabbing Ukiki without pressing B (useful for the BBC)
• Collecting Mystery of the Monkey Cage without changing the HOLP for an arbitrary HOLP
• Collecting Wing Mario over the Rainbow Capless and/or Cannonless
• Transport cloning with Wiggler or Skeeter
• Performing a transport clone with 4 simultaneous pushers
• Picking up the cannon bob-omb on the same frame as leaving its radius
• Collecting the new impossible coin (THI)
• Killing the mystery goomba and collecting its coin
• Collecting the red coin in BitDW at the start without using the ! Switch
• Getting infinite coins in CCM
• Cloning in LLL (maybe with fall damage instant release via falling from HSF)
• Reproducing the TTC upwarp
• Grab a bob-omb fake during boiling
• Vertical PU death in LLL
• HSWK between towers in TotWC
• Crashing the game by triggering death barrier before activating the TotWC starting textbox
• Survive in a vertical PU with a shell clone released in it
• Collecting the BitDW key from underneath the ground, causing you to collect the key on the death floor
• Collect a star during a demo sequence
• Activating 4 or 5 stars at once in BoB
• Activating more than 4 stars at once anywhere
• Reversing the one-way teleport in THI
• Ground-pounding Chain Chomp's post without interacting with the red coin (e.g. collecting its two coin value)
• Escaping from one of the fish tanks in the JRB room (starting with zero speed and damage counter)
• Get back on the platform after falling off in the Bowser 2 fight