Front Door

Getting there

Clear #7 Larry’s Castle for the main approach. The secret route from Valley of Bowser 4 also opens the approach, and Star World 4 provides the Star Road shortcut into the Valley.

Choosing rooms

Choose one door from 1–4, then one from 5–8. You only need two challenge rooms, not all eight. Doors 2 and 5 offer a straightforward route to practice: fence climbing followed by timed crusher crossings.

Doors 1–4

Door	Challenge
1	Auto-scrolling pillars, lava and switch-block footing.
2	Climb fences past Koopas, spikes and Lava Bubbles.
3	A block maze with Mechakoopas and hidden items.
4	Platforms patrolled by Lil Sparkies and a Hothead.

Doors 5–8

Door	Challenge
5	Time the gaps between Skewers and Thwomps.
6	Swim past bones, spikes and Ball ’N’ Chains.
7	Avoid fire-breathing and jumping Bowser Statues.
8	Pass the jumping Chargin’ Chucks.

The final corridor

Hit the red question block to activate the spotlight. Watch the Ninjis and Mechakoopas on the way to the boss door. Back Door skips the eight-room choice and begins at this last corridor.

Defeating Bowser

Stomp a Mechakoopa, carry it and throw it upward into Bowser’s head. Land two hits in each of three phases. Dodge the fire between phases, rolling balls in phase two and the bouncing car in phase three. See Bowser for the fight.

Completion

On SNES, defeating Bowser finishes the game but does not add to the saved 96-exit counter. You do not need to beat both entrances for that counter. The GBA remake has different ending and save handling; see Version differences.