Be warned - unmarked spoilers follow!
- Take a small sip whenever someone dies.
- If they're killed by something other than piloting Zearth, make it a full drink.
- Drink whenever there's a shot dominated by a tattoo.
- Whenever The Stars Are Going Out, pick a star and chug until it vanishes.
- Drink a couple drops for every scene that makes you cry. Make it a sip if you're not a crier. (Any more and anyone but the most stoic of watchers would run out of alcohol within a couple episodes.)
- Sip whenever Dung Beetle insults someone.
- Two sips if he gives exposition that he conveniently forgot earlier.
- Full drink if he's zooming around the group in between sentences.
- Add another full drink every time he's upside down for no apparent reason.
- Two sips if he gives exposition that he conveniently forgot earlier.
- Two big drinks if an adult tries to help the kids but ends up making things worse.
- Sip when you spot Jun napping. Note that this rule is significantly more difficult if you're reading the manga.
- Sip if you ever find yourself singing along to the opening or ending theme. (And don't skip the openings and endings, that's cheating!)
- If it's not your first time watching the show and/or you've been spoiled, sip every time you spot Foreshadowing. On second thought, maybe every other time. There's a lot of the stuff.
- If you really want a challenge, sip every time you notice something that could believably be symbolic.
- If, when you're done playing, Uninstall is stuck in your head, finish your drink.
