Behind Chain Chomp's Gate

Behind Chain Chomp's Gate
Star Info
Course	BoB
Height Above Ground	432
Course Records
TAS World Record	10"43
RTA World Record	11"37
ABC Minimum	0
ABZ Minimum	0

For a tutorial on speedrunning this star, see the RTA Guide

Behind Chain Chomp's Gate is the sixth and final mission of Bob-omb Battlefield. To complete it, Mario must ground-pound the post guarded by the Chain Chomp three times so the Chain Chomp breaks the gate guarding the Power Star. Bloated Bob-omb glitch, BLJ and Backward Shell Hyperspeed can also be used to clip Mario through the gate. A Death Star Glitch can be done on this star to skip the star grabbing animation.

A Button Challenge

This star can be done in 0 A presses and can also be done RTA, but is very difficult to do. The star is too high to get using a dive recover, so instead 2 Goomba Clones are used. Mario can use a cork box to clip inside the gate. The first problem is that it is impossible to clone a goomba inside the gate, so instead mario places the Cork Box at the desired location of a goomba clone. Mario can easily leave the gate as the gate is a one-sided wall. Mario uses the Hat in Hand glitch to release a goomba clone at the location of the box, since that’s where the HOLP is at. Mario then repeats this process with the 2nd goomba, and finally heads in and uses the 2 goomba bounces to reach the star.

TAS History

Behind Chain Chomp's Gate History

Date	Time	Improvement (Frames)	Improvement Author(s)	Save Description/Notes
Jan 29, 2010	9.36		Sonicpacker, Bobmario511
Jul 3, 2010	9.27	3	AruaErueru
Oct 31, 2010	9.20	2	Sonicpacker, Nahoc
Dec 17. 2010	9.17	1	Mickeys11189	(Run has been lost)
Nov 25, 2012	9.13	1	The 120 Star TAS Team	From the 2012 120 Star TAS
Jun 27, 2016	11.66	19	Plush	Mario triggers a death fadeout by going out of bounds and collects the star during the transition. Although this takes longer, skipping the star grab animation saves 2.1 seconds off the full run, making this a better strategy.
Apr 9, 2017	7.46?	?	AruaErueru	New timing method
Apr 14, 2017	7.13	5	Plush
Jun 14, 2018	10.53	8	Plush	New timing method. -1f reaching the bob-omb, -7f new movement to reach clip earlier
Jul 4, 2018	10.43	3	Plush, Snark
Jun 19, 2022	10.43	1	Plush, Eru, Crackhex	Better bob-omb grab leading to landing -1f
Feb 7, 2024	10.33	2	Elbertito, Crackhex	-2f Double jump land, +1f bob-omb grab, -1f jump to the star

TAS Strategy

Originally, this star was done by heading to the elevator and BLJing behind the gate. A faster strategy was found by Plush in mid 2016. Mario used a Bob-omb to push him out of bounds and clip inside from the side. Mario then collects the star while the death transition happens. The death cancels out the star grabbing, saving lots of time. Timing is different when using this death clip strategy. Instead of stopping when Mario collects the star, the timer stops on the first frame of the bowser death screen, as that determines how fast the run is.