Download the Tickle app (free) onto your ipad or iphone first. Then follow the instructions here to program the orca to follow your finger when it touches the screen of a tablet or phone
Blockly has some great games and qctivities to learn from ....and do. Have a go....
2 DIY is a great program to create basic games
The hour of code walks you through coding with Star Wars, Minecraft or Frozen!