Take a drink every time you or one of your demons misses a non-One-Hit Kill, non-status-inducing attack.
Take as many drinks as turns lost if your attack connects, but is repelled or drained.
Drink a whole bottle of whiskey if the interface alerted you to the enemy's elemental affinities and you did it anyway.
If surprised and wiped by a common, weak enemy that did nothing but spam a party wide attack you had a weakness to, never getting a turn, take a drink as usual, then as many drinks as levels you had an advantage over said enemy.
Take a drink every time a specific year is mentioned.
Take a drink every time an enemy Alice uses Die For Me! and it hits.
In thethreegames where Fiends show up in specific areas with 1/256 odds, take a new drink and drink the whole thing if you find one. If by accident, do it twice. Do not do this if the Fiend encounter was one of the predetermined ones in IV or if it spawned from the Fiend spawning tile in the Bonus Dungeon of II.
Take two drinks every time Maya counters a magic attack with a One-Hit Kill.
Take a drink every time the Final Boss uses the One-Hit Kill attack known as "MA"onyou. Take another if you were at Level 99. Take a huge drink if you dodge it.
Every time a boss demon rambles about humanity, take a drink for every page of text.
Take a huge drink every time you run an Enemy Scan and run into a Fiend or a Herald. Finish your drink if that enemy kills you.
Take a drink if, when you talk to Commander Gore, you're so far down Law or Chaos that you're given no chance to swing onto the Neutral path.
If Commander Gore's Adaptation attack kills you, take a drink for every 100 HP you had.
Take a drink every time you take damage in the middle of a cutscene.
Take a drink every time someone in your party gets hit with Bomb status. If they explode, take a drink for every party member that dies, including the one who just went boom. Chug hard if the exploding party member is you.
Take a drink if a team with Evil Wave or Chaos Wave attacks one of your teams, and the targeted team cannot fight back. Any bosses that can attack teams multiple squares away also count.
Take another if, due to said enemy team not moving, they get another turn before you can move or heal the targeted team.
Take a couple more if the targeted team dies because of it.
Take a drink for every team you kill in one use of Multi-Strike.
While fighting Lucifer, take a drink the first time he uses Megidoladyne. Each time he uses it again, drink 50% more than you did last time. Repeat until either Lucifer is dead, your party is dead, or you are dead.
Do the same if it happens while you're fighting the Ticos in Devil Survivor 2 Record Breaker.