Early Ice Beam

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Rooms Traversed
In This Wallcrawl
Gathering Hall (start)
East Atrium
Energy Core Access
Energy Core
West Furnace Access
Furnace
East Furnace Access
Hall of the Elders
Reflecting Pool Access (end)

Ice Beam Before Flaahgra (IBBF) is a trick in Metroid Prime that allows for the Ice Beam to be acquired immediately after getting the Morph Ball Bombs in most speedrun routes. It is a lengthy wallcrawl that traverses a lot of rooms, but it avoids having to do the puzzle in Energy Core and skips needing to have Wave Beam to go to the far region of Chozo. Depending on the route, it can also be counterintuitively referred to as IBBFAF (Ice Beam Before Flaahgra After Flaahgra), as some routes incorporate this wallcrawl after defeating Flaahgra.

Usage in Speedruns

TODO: Redo this entire section

Any%

Used to avoid traveling through Crossway and enables skipping the Chozo Ghosts fight in Hall of the Elders.

100%

Used to obtain Ice Beam before fighting Flaahgra.

Performed immediately after collecting morph ball bombs.

Enabling exiting Research Core via the ice door after thermal visor and immediately collecting plasma beam.

Low%

While not currently used in RTA low% runs it does save time when executed optimally in a no-space-jump setting.

Used in the current low% TAS

IBBF Room by Room Guide (GC)

Gathering Hall

East Atrium

Energy Core Access

Energy Core

West Furnace Access

Furnace

Once you have transitioned into this room, you can choose one of three paths depending on your preference: Left side, right side, or bottom.

TODO: Attach image showing East Furnace Access load trigger

Left Side

Wallcrawling using the left side of the room is the fastest way of traversing this room out of bounds, and is the most common method for top-level speedruns. However, it is also the most complex and difficult of the three methods, and the most prone to failure if you don't have the proper experience.

Right Side

Bottom

Left/Right Side Comparison by East

The video below compares various strategies for both the left and right sides of the room.

East Furnace Access

Hall of the Elders

Reflecting Pool Access

IBBF Room by Room Guide (Wii)