The first sound I'd like to recreate is the main rhythmic synth immediately at the beginning of this track:
One trick I discovered at first is that I can set the rhythm by creating an envelope (set to loop) in Europa and assigning it to the oscillator(s) level, so that I can set Europa to legato mode and keep one key pressed. But I have no idea how to create the sound itself.
The second one is the kick drum you can hear for the first time just after 0:16 in the track below. I just can't figure out how to get it. I've tried a few times, but always with unsatisfying results. If anyone knows how to recreate it, in Kong or Redrum, please let me know.