Levels are actually fixed generation (give or take a few levels like the last boss), so you could actually repeat inputs step-by-step to have the same outcome. "The very best" may require needing to do specifically a 4-chain by one trigger. I was not able to get it doing 3-chains.

Duels:
https://youtu.be/4svntX4Ayd0

Survivals:
https://youtu.be/-AkOD6oa7SM

Puzzles:
https://youtu.be/Bb_8Pd3-G3Q

Possibly troublesome achievements:
https://youtu.be/AxnpLGoPzSg
https://youtu.be/k004erJc40g
https://youtu.be/r8SCgl6lnrE

https://discord.gg/h9sGj6bdbY

Chat with us on Discord! We can be easily reached and worked with here. Hear about the latest bundles, shutdowns, delistings, free games, make friends and co-op partners all in this server~

RESTRICTED: Its single achievement is currently not implemented.

RESTRICTED: Multiplayer party game. Win on all maps and destroy the ship on 'Ice Breaker'. Can be done with an extra controller or an AI. 'La Bonnotte' is currently broken. ~25 minutes to 92%.

RESTRICTED: Soundboard software. Drag an audio file into the soundboard window, play it and upload to Steam Workshop. ~1 minute to 100%.

RESTRICTED: Awful shooter. Find 3 eggs and survive for 20 minutes on Medieval Ruins map. Tabbing out of the game pauses the game but leaves the timer running, making the survival trivial. ~20 minutes to 100%.

RESTRICTED: Table tennis. Beat all 72 story mode levels for all achievements. ~3 hours to 100%.

RESTRICTED: Launch the game for the only achievement. ~1 minute to 100%.

RESTRICTED: Its single achievement unlocks upon starting the game. More achievements possible. ~1 minute to 100%.

RESTRICTED: Action RPG. Use 'F2' to open debug menu, press the 4th button in the first row, then last button in last column to receive the item for the achievement. ~1 minute to 100%.