Bomb Clips
From ALttP Speedrunning Wiki
You can clip through a diagonal slope (both indoors and outdoors) by taking damage, and be damage boosted into the wall.
The exact requirements is:
- Link needs to be dashing on a slope.
- The damage source needs to be exactly perpendicular to the direction Link is facing, such that the damage boost happens in a cardinal direction into the wall.
- Link can only clip through walls with slope properties using this.
The general RTA technique:
- Put down bomb at a specific coordinate
- Put Link on a specific row/column of coordinates
- Wait for the bomb to start blinking
- Start your dash into the slope
- Dash into the bomb explosion
That last part is the essential part of making this consistent RTA. You don't have to be below the bomb explosion as it explodes. Instead you let it explode, and then dash into the explosion.