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Bugs |
The teachers are all running at the start of the game.
FOR n=56587 TO 56590: POKE n,144: NEXT n
The jumping sound effect is not as it should be, because of an erroneous CALL instruction in the routine at 60139.
POKE 60149,254
In lesson 229 (REVISION LIBRARY), MR ROCKITT paces up and down in the Exam Room like a little boy, waiting for a teacher who never arrives.
When a speech bubble is obscuring a shield, ERIC cannot get it by jumping up to it or firing at it. This is because the routine at 28143 checks for the presence of a shield at the location of ERIC's hand or pellet by inspecting the attribute byte: a shield is assumed to be present only if neither the PAPER nor the INK is black. However, when a speech bubble is in the way, the INK is black, and the routine exits early.
Speech bubbles are vulnerable to corruption by the movement of characters or catapult pellets in front of them. The easiest way to see this is to climb the stairs that lead up to the head's study when a teacher is standing at the doorway of the White Room telling the kids to sit down. (This bug was fixed in Back to Skool by ensuring that characters, pellets, etc. are always drawn behind speech bubbles instead of in front of them.)
Kids are unable to sit in the back seat in the Reading Room (see 27632). This may actually be a feature, though, because if EINSTEIN sits in the back seat, his speech bubble goes through the wall into the Map Room.
POKE 27704,56
The blackboard buffers are wiped before a new game (or demo mode) starts, but the blackboards themselves are not. Thus BOY WANDER, who would normally write only on a clean board, will unwittingly scrawl over a blackboard's previous contents at the start of a new game. (This bug was fixed in Back to Skool.)
Lesson 230 (REVISION LIBRARY) has MR CREAK teaching an empty class in the Reading Room.
If ERIC hits a character who is sitting on a chair, and then quickly sits in the chair just vacated, ERIC will not be pushed out of the chair when the character rises and takes his seat again.
In lesson 236 (MR WACKER - WHITE ROOM), BOY WANDER is in the Revision Library (on his own, as it happens). However, if EINSTEIN tells on BOY WANDER for writing on the board, MR WACKER will still give lines to the absent tearaway. (Perhaps the ceiling in the White Room conducts sound well enough for BOY WANDER to hear the admonition.) The same thing may also happen in lesson 237 (MR WITHIT - WHITE ROOM), when BOY WANDER is once again in the Revision Library (this time accompanied by ANGELFACE).