m.b.t.a. planet on xkcd 'escape speed'.

i came across this m.b.t.a. planet while playing xkcd 'escape speed':
https://xkcd.com/2765/

spoiler alert:
there are blue line, red line, orange line, green line tokens to be picked up at various boston themed locations on other planets. then you must guide your ship to kendall/m.i.t. to pick up a hyper-drive.