Atlus released a trailer for the latest game in Sting's Dept. Heaven series, Yggdra Unison. The most notable, and weird, aspect of the trailer? The seemingly random number-writing. Rather than relating to the amount of damage your characters dish out, it's an odd holdout from the game's first life on mobile phones.
Basically, each of your units is marked with a number, and on the phone version, you'd type that number to trigger that unit's part of the Unison Attack. For the DS version, the keypad is gone, but the numbers are still there. Of course, it has a long way to go before it can out-odd Knights in the Nightmare, a game in which you, as a ghost, take control of your units by possessing them.