I love this game! By completing levels 1-40 you unlock morse code, faces and PAR. By completing all levels in PAR, you unlock Bonus Mode. By completing all levels in bonus mode, you unlock extra levels. By completing them in PAR or (optionally) in Bonus Mode, you unlock a Russian Broadcast. Completing levels 41-45 in Bonus Mode is optional. Russian Broadcast is unlocked by completing levels 41-45 in PAR, not Bonus Mode.
One question. Where did you get that Russian broadcast?