I have browse for flash-based activities by Google, to make it as my Interactive Activity.
This is also a hard part for me as it is using html mode to paste in the code. Let me share you how is the code looks like:
<embed type="application/x-shockwave-flash" src="[YOUR FLASH LINK HERE]" pluginspage=" http://www.macromedia.com/go/getflashplayer" height="400" width="400"></embed>
You can set the height and width values to your desired value. Happy trying!
If you want to put 2 flash games, just copy and paste the same code after the first.