These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] games-util/ucon64-2.2.2::gentoo  USE="zlib -debug -usb" 1447 KiB

Total: 1 package (1 new), Size of downloads: 1447 KiB