This is a bit of a bonus round, but it seemed like a fun enough prospect. Here is Purple Tentacle from DOTT.
This is what was used for reference:
The LEGO model:
I wanted to use a slightly darker green in place of more lime-like green you see in the model, but regrettably, there simply isn't enough part variety in that color to make the building of the model feasible, so that's a compromise. I might redo it in the future
Stan is definitely in the pipeline, just need to decide whether to do the model in his SOMI guise of MI2. The sprites seem to be pretty identical, apart from the color patterns