to use that were native to INSANE. Internally, much of the workings of SCUMM were undocumented, as Wilmunder believed that it was relatively simple to learn, but he changed this approach before The Secret of Monkey Island. To train new hires on the engine, Gilbert put them through SCUMM University, a week-long period where they were taught how to use the SCUMM engine. These new hires, called , then were given the opportunity to explore and expand on example work to help identify where they would best fit into the development team. LucasArts finally abandoned the SCUMM engine in 1998, when they switched to GrimE, using the free software scripting language Lua, for the games Grim Fandango and Escape from Monkey Island. Humongous Entertainment continued to use the engine for its educational games and sports series Backyard Sports. In March 2016, Wilmunder revealed that he would share design documents for many of LucasArts' adventure games and the source code for the SCUMM engine, which he plans to provide in digital format via GitHub. Design Most SCUMM games feature a verb–object design paradigm. The player-controlled character has an inventory, and the game world is littered with objects with which the player can interact, using a variety of verbs. A large set of these were often featured at the bottom of the screen in the early games, but by Full Throttle (1995) and The Curse of Monkey Island (1997) these had been reduced to a "verb coin" appearing at the mouse cursor with the option to use character's eyes (to look), hands (to use, pick up, push, pull, etc.), or mouth (to talk, consume, inhale). Puzzles generally involve using the right verb action with the appropriate object—"use biscuit cutter with rubber tree", for example. "Talk to" commonly produces dialogue sequences, in which the player selects from a list of predefined questions or comments, and the character they are talking to replies with a predefined response. The notable exception to this general paradigm is Loom (1990), which does not use the standard verb–object interface, but replaces most actions with a selection of spells played on an instrument. Reimplementation Compiler ScummC is a set of tools (including a script and a costume compiler, a walkboxes editor, charset, graphics, audio and MIDI tools), able to compile its own JavaScript-like language into SCUMM v6 bytecode, runnable as is in ScummVM. It allows anyone with the needed