Fast Leveling in Bottle Cracks
Remember this is genuinely a one-button game -- pick any single key or button and stick with it, since jump power (not additional inputs) is what determines whether your bottle survives a level.
Since Barrier Mode, Fire Wall Mode, and Race Mode are all confirmed as distinct experiences, pick based on what your group wants -- cooperative obstacle-avoidance, elimination-style pressure, or competitive racing all play genuinely differently.
See the full data: Bottle Cracks Getting Started