The product works intermittently (sounds, lights and movements) depending on the product type, the product is affected in some way.
In the ON/NORMAL mode, check the condition of the batteries and if they have not been previously replaced.
The original batteries may be exhausted for the try-me function or normal mode. Replace them with new ones to see if the features work.
Maybe the product is blocked and needs to be reset. Follow the instructions to find the "RESET" function which is highlighted in the istructions manual or simply take out the batteries and put them back in again.
If you have already replaced the batteries but you are using white-label batteries and/or of low cost batteries, they may not have a high enough capacity to run the product. This may affect the duration of time the product works. Only use batteries in accordance with market standards, recognised brands and recommended by the manufacturer.