An amazing movie. Very enjoyable, but slightly fragmented (with many fades to black separating scenes) and very surreal.
I’m a bit sad that many people won’t bother with the film because it seems to make very little sense in the beginning (and not too much more explicit sense in the end); it’s more like a collage of emotions at times.
The art style takes some getting used to, it is similar to Ping Pong from the same mangaka — which also has an excellent live action adaptation which I cannot recommend heartily enough; it evokes many of the same feeling that Tekkon Kinkreet does.
Technically, the 2D animation has a rather low frame-rate at times (and I’m not sure I like the motion-blur post-processing in that context), but the excellent backgrounds and superb 3D animation (which managed to never feel separate) are more than making up for that.
Last but not least, the soundtrack (although sparse) by Plaid fits perfectly.
Truly a high point for animated films this year!