This bug has been posted on these forums before, but I don’t think TRS ever acknowledged it? It was probably a pre- @Shaners bug. When Sunny jetpack boosts a hunter they can fly for an effectively infinite amount of time if their jetpack energy runs out while they are in the air. They start using the jetpack gun’s energy, but at a rate that seems lower than 1% per minute (meaning that a game would probably have to go for multiple hours for any need to stop flying with a single jump). Here’s an example video of me flying with a friend for several minutes without having to come down:
You can see that an incredibly small portion of the jetpack gun’s energy is used over the course of this video. None the less, it’s still really stupid that it’s in the game - and I’m not even 100% sure it’s a bug. It could actually be intended since it’s never been confirmed to my knowledge.