Used in conjunction with the contents of 7FD8. Holds the ASCII code of the last key pressed while writing on a blackboard (see 5E6F), or the descent table identifier (0xFC-0xFF; see FBCC), or the LSB of the address of a routine (or an entry point to a routine) for dealing either with ERIC or with the result of an action by ERIC (see E145):

Address	Purpose	Placed here by
5D45	Remove the water pistol from the inventory	5D37
5ED0	Deal with ERIC when he's raising his fist	5EC7
5EE2	Deal with ERIC when he's lowering his fist
5EF0	Deal with ERIC when he's raising the catapult	5EE8
5EFA	Launch a pellet from ERIC's catapult
5F04	Deal with ERIC after he's launched a catapult pellet
5F8A	Deal with ERIC when he's kissing HAYLEY	5F1C
7AE6	Release some mice	E225
7B55	Make ERIC catch a mouse or frog (if present)	E125
F862	Deal with a dropped stinkbomb	7140
F9AB	Control water fired from the pistol	F99A