Designer gives a look at early Sonic the Hedgehog 2 map sketches

Earlier today, brand new images emerged showing map sketches from Sonic the Hedgehog 2. These were shown by Hirokazu Yasuhara, who worked on the game as a planner.

You can see the images for yourself below. One map is particularly noteworthy, as it shows the cut Genocide City level which never made it into the final game.

Source, Via