shrubby 
and yes, 4 those of u that dont kno, sonic underground got reruns on disney xd in 2012!!! they aired all 40 episodes before it got replaced by kick buttowski
i vividly remember when this was announced. i dont remember the commercials per se but in th internet circles i frequented ppl were heavily speculating whether or not this meant newly produced episodes or simply reruns of the og show
they aired weekday mornings im fairly certain?? like, right before ud go to school early. but then like, at some point i remember they moved the airtime to like...... 4/5/6 in the morning. & despite it being so ungodly early i still either stayed up to watch it or i tried to wake up early to watch it.
i have really fond memories of watching sonic underground while it was on disney xd. this actually wasnt long after id first discovered the show, too !!!
th first bumpers they used for the show were the most iconic during its time on disney xd but like, i remember th non-stop summer ones th most
when im done w school today i think im gonna go digging for more bumpers & commercials bc theres a surprising lack of these on youtube