Rocket League is both at the same time, an absolutely brilliant core game (albeit with extreme QA problems), with manipulative and unethical business practices layered on top, both to keep people playing and to monetize those people.
fcsh-wrap -static-link-runtime-shared-libraries -benchmark=false -debug=false -o tmp.swf -source-path=src -library-path+=lib/as3-signals-v0.8.swc -- src/core/Main.as
It almost builds for me, but I think since my Flash projects were older than yours my copy of the Flex SDK might be too old.