Regarding launchers, I wasn't too big on the look those clips gave the Inika's Zamor Launchers. Yeah extra ammo is nice and all, but it just made the launcher look really bulbous and awkward.
The Squid Launchers were cool conceptually, but were ineffective functionally, only working on a case-by-case basis for me.
Much as I enjoyed the Midak Skyblaster, it only really looked good on larger vehicles and Titans. That, or mounted like a rocket launcher in Pohatu's case, or as a two handed weapon with Kopaka. Lewa and Toa Ignika just looked strange lugging this massive blaster around in one hand.
As for melee weapons, I didn't particularly enjoy the designs of the Inika's primary weapons. They just felt unappealing visually and the light up feature felt unnecessary and gimmicky.