I was playing Rayman Origins and my mother randomly chimed in and described the first game she can remember playing. I would really like to know what it was, but everything I could come up with doesn't fit.
She described a sidescrolling platformer, which must have taken place in a zoo or something because you went through a gate of some sort and there were animals on the other side, who you interacted with in platformy ways (like the alligators in Pitfall, for example)
She also described the timing based obstacle where a vertical stream of death will switch on and off and you have to time your movements. In this game the stream to avoid was water.
She said she played it on some computer she had access to while in an university, which must've been like 1986-87. Definitely before '88.
Another important point is that I live in Estonia, so the game must have existed a year or two before that, because I can't imagine it making it's way here otherwise.
Anyone have ANY clue what it could have possibly been?