I think this game would be a neat TAS speed run choice (preferably a 100% run, as just the main quest would be very empty and reduce the interesting of the run) despite the number of cut-scenes (all fairly short, but unskipable), as super human time management would reduce total game time a lot.
Things that would be usable
Gambling with Peekoe would be very easy with quick saves and quickly let you get the 8080 Happy Points for the max battery, and get the money to buy everything too. This renders trash and stain cleanup pointless, and Chibi Doors only needed for the sticker.
Spydorz can be forced to spawn at the basement if you save and reload after destroying them (they are right next to the save here)
Trauma suit is obtained from dieing once (I think the Freedom Rangers are a good way to die early), and will let you warp back to the Chibi house quickly at no cost.
Carrying the plug instead of dragging it makes Chibi go much quicker.