Chip 'n Dale: Rescue Rangers 2 is quite an improvement over the original Chip 'n Dale in terms of graphics and a whole lot of other things. Thankfully, the original game's solid controls haven't been changed. The plot of this game is that Fat Cat has stolen the Pharaoh's Urn and wants to use its power (for evil purposes, of course).
fcxiaopengyou & dragonxyk improved the previous run by 00:58.62 seconds via new glitches, lag reduction, and enemy manipulation. See here for a run with just Chip.
Watch this run being played back on a real console.