Door bugging in GTFO is a controversial but highly effective technique for speedrunners aiming to optimize their times in Lawless Any% and Lawless 100% categories. This guide will walk you through the mechanics of door bugging with hammers and bats, explain why it’s useful, and provide advanced tips for time optimization.

Why Door Bugging Matters

• Spawn Capping: By bugging doors, you can cap the number of enemies that spawn during alarms, making later scans significantly easier.
• Speed Optimization: Saves precious seconds in speedruns by allowing players to bypass enemy waves.

Disclaimer: Avoid using door bugs in the official GTFO Discord server, as it’s considered an exploit.

Door Bugging with the Sledgehammer

Large Doors

• Hits Required: 3 full-charge swings.
• Technique:
  1. Perform two full swings.
  2. Open the door, charge the third swing.
  3. Close the door and hit the top edge just as it shuts.

Small Doors

• Hits Required: 2 full-charge swings.
• Technique:
  • Similar to large doors but requires fewer hits.

Door Bugging with the Bat

Large Doors

• Hits Required: 8 taps (7 light hits + 1 full charge).
• Technique:
  • Tap the door seven times, then finish with a full-charge hit.

Small Doors

• Hits Required: 5 taps (4 light hits + 1 full charge).
• Technique:
  • Tap the door four times, then finish with a full-charge hit.

Advanced Optimization Techniques

• Speedrun Strategy:
  • Hit the door twice while it opens to save time.
  • Slide under the door to activate prompts faster.
• Comparison: Optimized door bugging can save up to 20% of the time compared to standard methods.

Cautions and Limitations

• Does Not Apply To:
  • Blood doors.
  • Hibernating sleepers.
• High Stamina Penalty: Aggroed enemies will cause stamina to stay high, resulting in higher BPM.

Summary

1. Large doors: 3 hammer swings or 8 bat hits.
2. Small doors: 2 hammer swings or 5 bat hits.
3. Optimize by hitting doors while they open.

By mastering these techniques, you can significantly improve your GTFO speedruns, making them smoother and faster. Good luck, and happy speedrunning!