Hacking anyway to open bk2 files for sonic boom?

[pietempgba]

same as above

 

[Bug_Checker_]

same as above

What have you tried?

bk2 should be bink2 files
https://wiki.multimedia.cx/index.php?title=Bink_Container
https://wiki.multimedia.cx/index.php?title=Bink_Video_2

So you should be able to demux with VGMToolbox
Or find a bik or bink player, if some open source video player does not work(like mplayer or vlc).

You may have to rename the *.bk2 file to something else (like *.bik) to get them to be recognized properly in the software.

 

[pietempgba]

and also how would i open .wiiu.stream files

 

[Bug_Checker_]

and also how would i open .wiiu.stream files

Try this:
http://forums.sonicretro.org/?showtopic=33805

I believe the stream.bms file goes like this:

endian big
idstring "strm"
get tsize asize
for
savepos tmp
if tmp == tsize
cleanexit
endif
get zsize long
get size long
get hash long
get unk long
get name string
savepos offset
print "%name%: %unk%"
log name offset zsize
math offset + zsize
goto offset
next

There is another version of stream.bms which deletes line 15 of the above code so YMMV:

print "%name%: %unk%"