If you've seen it you'll know that the ghost will have a `booster' when you pull the left trigger
You might be able to do this in Halo 1 if you set the ghost to have a secondary fire (like the imported banshees do), but have it fire an invisible projectile backwards which explodes with large force (but no damage)
(also ppl standing behind you would be thrown

If this was timed and aimed right, we could have a constant booster effect when you pull the left trigger.
I would try this but I can't get the .net runtimes working on my computer, which seem needed for almost all the tools (and I probably don't know enough to do it)
So if theres anyone out there who wants to give it a shot, please do!