Giving Mia the Beetle was silly but it did a decent job of setting up the plot. Ji having enough problems with Mike to take his samurizer was outta left field, but otherwise the episode was pretty good with Hector easily being the best actor among the Rangers. And a nature lesson for the kids never hurts. :P
Liked the focus on symbol power and how we got to know a little more about Ji. Nice to see him get out for once. Really annoying to hear "Mentor" over and over again.
Another fun scene with Bulk & Spike as they slowly get closer to learning the Rangers identities.
Also thought it was cool to see the MOTD trip a gap sensor for the first time.
Having not seen any Shinkenger is making these episodes more fun for me to watch. I initially thought to give it a 5, but yeah -- that's being too generous as long as plot points are being brought over that just don't work that well here. Still an easy 4/5.