For example, the energy pack will be a miniature power plant that increases the recharge rate of your armor. With a faster recharge rate, your energy-based weapons will become more effective, and your jetpack will recharge more quickly so that you can fly even higher than normal. The higher recharge rate will also let you force-dump extra energy into your jetpack to provide an immediate burst of speed in the direction you're facing. This ability will be helpful not only for covering ground, but also for making quick changes in your direction if you happen to be skating along a certain path and for making quick stops if you turn away from the direction you're skiing and hit your jetpack for an instantaneous reverse. You can even use this ability to fly over tall hills--you won't get quite as much height as you would by "rocket-jumping" (pointing an explosive weapon, like the disc launcher, at your feet, then firing and jumping onto the blast), but you won't sustain any damage from your own shots, either.
Another pack that will be featured in the game is the repair pack, a helpful item that continuously manufactures microscopic "nanorgs," which restore your character's lost health and armor strength. While this can be helpful to survive the initial damage you take from a surprise attack, you regenerate lost health and armor at a very slow rate, so it definitely won't make you invulnerable. However, the pack itself charges up gradually, and when it's full, it will disperse nanorgs into the air around your character and will begin to repair a nearby friendly target, similar to the way a health kit works. With a fully charged repair pack, you'll actually be able to get repairs on a damaged friendly target started, then move on to a new friendly target while the first recovers on its own. If settling down and quietly waiting for a full recharge isn't an option, as it likely won't be in the game's multiplayer matches, you can still partially repair any nearby friendly targets just by getting close to them.
