Maybe your expectations were to high? Not sure. I haven’t played it but it’s just a simple tower defense type game in the Star Fox universe that utilizes the Wii U gamepad… and with that in mind I wouldn’t be expecting anything with much depth. I’m not a huge fan of the genre so I probably wouldn’t enjoy it for prolonged periods of time, maybe just some mindless gaming for a bit.
How many levels did you play? Apparently things get a bit more interesting as you get further into it with more mission and different cameras. I think part of the appeal might be the creation and sharing with friends.