Any%

• Emulator used: v2.10
• Complete all 15 Stages.

Notes

• Clues regarding passwords don't need to be picked up, as I can enter the combination from the start.
  • Clues about needing to use an item in a completely innocuous spot, are needed to progress, however.
• In Stage 7, the final input on the keypad is delayed for a few seconds. This is because otherwise, the stage would have been completed in under a minute. That sounds like a good thing, except for the fact that it blocks progress. The game keeps track of how long it took to beat each stage, and displays your lowest time on the stage select; however, because the timer only measures in hours and minutes, not seconds, it will display at the end of Stage 7 a time of 00:00. If this happens, the remix stages don't unlock, and Stage 7 will not have a time logged. Presumably, this is because this game has 00:00 logged for each stage already, and once the previous stage logs a time other than that, the next one will unlock.
• In the remix stages, an alien insignia must be found in each, in order to unlock Stage 8.
• In Stage 8, I also have to wait, but this time, it's for an alien? to try to break down the door.