The game is space invaders
What you need-
Have players working in pairs or on their own (depending on fitness levels)
Have the cones set up as shown
A handful of players holding tackle shields -Invaders-
The "invaders" will be holding the tackle shields, they will be side-stepping/skipping from cone to cone, giving themselves enough space between each other for tackles to be made. Once a tackle has been made, the "invader" will get up and return to the starting point waiting until they can head off again.
The tackler has to take out as many invaders as they possibly can, this can be done in pairs or individually. They key points have to be made about the tackle and good or bad form in the tackle (talking about leg drive, the hit with the shoulder, and wrapping the arms around). As a coach, you will time the players for anywhere in between 1 minute, to max 3 minutes per tackler (depending on time frame of session)
I personally would use this as a fun way of introducing conditioning to your session. It's a disguised fitness session, meaning players are more likely to give it their all
Make sure to keep good form in the tackle, even under fatigue.
There will be some "stall tackles" (when the tackler is too tired to take the invader down) ask them how they can take them down, even when tired.
Create a resolution to develop your coaching confidence by seizing the opportunity to discover new drills, turn ideas into action and seek advice from the coaching community.
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."